Radiator for hot-air furnaces



3 y 3, 1929. J. F. FIRESTONE L L 2 RADIATOR FOR HOT AIR FURNACES Filed Aug. 24, 1928 I I I I I I I g I I INVENTOR James F Ereslone A TTORNE 1 Patented July 23, 1929.

UNITED STATES 1,721,620 PATENT OFFICE.

JAMES F. rmnsronn, F DOWAGIAC, MICHIGAN, ASSIGNOR TO THE BECKWITH 00M- IPANY, or DOWAGIAC, MICHIGAN.

RADIATOR FOR HOT-AIR FURNACES.

Application filed August 24, 1928.

The main objects of this invention are:

First, to provide in a hot air furnace an improved radiator structure which is highly efficient in the matter of radiation and one in which all the parts are readily accessible for cleaning.

Second, to provide in a hot air furnace an improved radiator structure which may be conveniently adjusted to permit the positioning and facing of the furnace in a manner best adapted for the particular installation.

Objects relating to details and economiesof my invention will appear from the description to follow. The invention is defined and .pointed out in the claims.

radiator on line 44 of Fig. 2.

Fig. is a fragmentary vertical section on hne 55 of Fig. 1.

Fig. 6 1s a fragmentary section on line 6-6 ,-of Fig. 2.

In the drawing similar reference characters refer to similar parts throughout the several views.

In the embodiment illustrated, 1 represents the heating unit which is provided with a face wall 2 in which the ashpit door 3 and fire door 4 and the water pan 5 are mounted. The casing designated generally by the numeral 6 surrounds the heating unit, the hot air lines 7 being connected to the top of the casing as is customary.

The casing is built up of sections 8, 9, and 11, the sections 8 and 9 constituting the body sections of the casing and being connected to the furnace front. Casing rings 12 and 13 are disposed between the sections 9 and 10 and 10 and 11 respectively so that the sect-ion 10 is supported for rotative adjustment, that is, it may be rotatably positioned relative to the sect-ions 9 and 11.

The radiator designated generally by the numeral let comprises a central portion 15 having a central enlargement 16 provided with an annular portion 17 rotatably asso- Serial No. 301,710.

ciated with the top ,of the combustion chamber of the heating unit 1, the joint being such as to permit the rotative positioning of the radiator relative to the heating unit.

The central portion 15 of the radiator is provided with a cylindrical cleanout extension 18 at its front end and a smoke flue extension 19 atits rear end. The radiator also includes angular flue-like circulating portions 20 disposed in opposed relation and joining and opening to the portion 15 at the ends thereof, these port-ins 20 having cylindrical cleanout extensions 21 at the angles thereof, the extensions 18, 19 and 21 of the radiator being disposed through openings provided therefor in the casing section 10 so that the casing section and the radiator may be adjusted as a unit.

Cleanout door frames 22 adapted to receive the projecting ends of the cleanout extensions are mounted on the casing section 10, the cleanout doors 23 being mounted upon these frames. The cleanout door frames are mounted on the section 10 so that it may be selectively positioned'to bring out one of the cleanout door frames in a central relation relative to the furnace front 2, as is shown in Fig. 1, the cleanout door frame positioned above the front wall constituting an extension oris disposed in complementary relation to the front wall, and having the appearance of a part thereof.

()rnamental elements 24 are preferably provided on the cleanout door frames to further this appearance, these ornaments filling in the angles resulting from the cleanout door frames being narrower than the furnace front. This permits the adjustment of the radiator to properly position the furnace and for convenience in firing and at the same time affecting the direct or approximately direct connection to the chimney.

The radiator is provided with a damper indicated at 25 which when open permits a direct draft to the smoke flue, and when closed impels the products of combustion to pass through the circulating portions of the radiator.

By providing the three cleanout openings, all portions of the radiator may be thoroughly and easily cleaned.

The circulating portions of the radiator are preferably of the cross section indicated in Fig. 4, having substantially flat top and bottom walls 26 and 27 and substantially flat side walls 28 and 29, the side wall 28 being preferably inclined, as illustrated.

This results in an increased capacity of the flue portions of the radiator without inj uriously obstructing the space within the hot air chamber and at the same time the passing air contacts with a relatively large surface area of the radiator.

I have illustrated and described my inprovements in an embodiment which I consider very desirable. I have not attempted to illustrate or describe certain modifications and adaptations which I contemplate as it is believed this disclosure will enable those skilled in the art to embody or adapt the same as may be desired.

Having thus described my invention, what I claim as new and desire to secure by Let ters Patent, is

1. In a hot air furnace, the combination with a heating unit provided with a furnace face wall, of a casing comprising a body portion, the upper edge of which is adjacent the upper edge of said face wall, a top section and intermediate annular section associated with said body and top section for rotative adjustment, a radiator associated with said heating unit for rotative adjustment and comprising a central portion tern'iinating at one end in a smoke flue extension and at its other end in a cleanout extension and opposed angular circulating flue-like portions having cleanout extensions at thci angles, said several extensions being disposed through said adjustable casing section, and cleanout doors provided with frames mounted on said adjustable section of said casing to receive said cleanout extensions so that thedoor frames may be selectively positioned above said furnace face wall in complementary relation thereto.-

2. In a hot air furnace, the combination with a heating unit provided with a furnace face Wall, of a casing comprising a section mounted for rotative adjustment, a radiator associated with said heating unit for rotative adjustment and comprising a central portion terminating at one end in a smoke flue extension and at its other end in a cleanout extennvaneao sion and opposed angular circulating finelike portions having cleanout extensions at their angles, said several extensions being disposed through said adjustable casing section, and cleanout doors provided with frames mounted on said adjustable section of said casing to receive said cleanout extensions so that the door frames may be selectively positioned above said furnace face wall in complementary relation thereto.

3. In a hot air furnace, the combination with a'heating unit provided with a furnace face wall, of a casing comprising a body portion, the upper edge of which is adjacent the upper edge of the face all, a top section, and an intermediate annular section associated with said body and'top section for rotativc adjustment, a radiator associated with said heating unit for rotative adjustment and comprising a centrai portion communicating with the heating unit and terminating at one end in a smoke flue and opposed angular circulating flue portions, each provided with. a clean-out extension disposed through the adjustable casing section, and cleanout doors provided with frames mounted on said adjustable section and adapted to be selectively brought into complementary relation with said face wall by the rotation of the said adjustable section.

a. In a hot air furnace, the combination with a heating unit provided with a furnace face wall, of a casing comprising a body portion, the upper edge of which is adjacent the upper edge of the face wall-,a top section and an intermediate annular section associated with said body and top section for rotative adjustment, a radiator associated with said heating unit for rotative adjustment and provided with a smoke flue and a plurality of cleanout openings, and cleanout doors for said cleanout openings provided with frames mounted on said adjustable section and adapted to be selectively brought into complementaryrelation with said face wall by the rotation of the said adjustable section.

In witness whereof I have hereunto set my hand.

JAMES F. FIRESTONE. 

